Belt-tightener



(No Model.)

0. B. KYSOR. BELT. TIGHTBNER.-

No. 535,140. Patented'Mar. 5,1895;

Witnesses. @%M@4flfl n Inventor. fi y y By fi n 5}.

UNTTT -STATES PATENT @rrrcn.

CHARLES E. KYSOR, OF EAST LEON, NEW YORK.

BELT-TIG HTEN ER.

PECIFICATION forming part Of Letters Patent NO. 535,140, dated March 5, 1895.

Application tiled December 12, 1894. Serial No. 531,582. (No model.)

To aZZ whom it may concern:-

Be it known that 1, CHARLES E. Kvson, a citizen of the United States, residing at East Leon, in the county of Oattaraugus and State of New York,have invented certain new and useful Improvements in Belt-Tighteners, of which the following is a specification.

My invention relates to a new and improved device whereby a yielding lateral swinging movement, a turning movement either way on a vertical axis and a vertical movement up or down is given to the tightening pulley so that it will freely accommodate itself to the surface of the belt upon which it rests, all of which will be fully and clearly hereinafter shown and described, reference being had to the accompanying drawings, in which- Figure 1, represents a front elevation of the tightening pulley, showing the pivoted swinging frame in which it operates and the supporting frame. Fig. 2, is a side elevation of the tightening device, a vertical section being cut through the supporting frame in or about line a a, Fig. 1,showing it applied to a belt for tightening it. Fig. 3, is a front elevation, showing two tightening pulleys in the pivoted swinging frame for running a belt from a vertical to a horizontal position. Fig. 4, represents a side elevation of the double tightening device, showing it applied to a belt turned from a substantially vertical position to a substantially horizontal position.

Referring to the drawings in detail,l and 1*, represent the two stationary frame pieces of the device. They are preferably constructed of wood but may be made of any suitable material and are provided with two cross bars 2 and 2, securely fastened to them.

This round bar 9, passes up through round holes in the cross bars 2 and 2*, so that it and the frame carrying the tightening pulley, will have both a free vertical movementin either direction and a turning movement either way.

In Figs. 3 and 4, the swinging frame is made long enough to carry two tightening pulleys, the pulley 3, and the second tightening pulley 10. With this exception this swinging frame is the same as that shown in Figs. 1 and 2. The object of the additional pulley is to adapt the device to be used with a belt running at an angle substantially as shown in Fig. 4. This tightener may be adapted to rest on a belt at any angle so that its weight (which may be regulated as required,) will act in tightening the belt, or it can be forced upward against the under side of a belt bya counterweight, substantially as shown by the dotted lines 12, in Fig. 3, or in any other well known way.

The advantages of the above described construction will be readily seen. The tightening pulley being easily movable in any required direction, will adapt itself to any inclination of the belt in any direction and the belt itself is not moved either way out of its normal line or proper running position. It will be noticed that the tightening pulley is set forward of the center of the vertical bar 9, so as to give it a caster action which isimportant in this construction.

I claim as my invention- 1. In a belt tightener, the combination with a stationary supporting frame, of a movable tightening pulley frame, a tightening pulley mounted in bearings in said movable frame so as to be rotated easily therein, a forked bar pivoted to the tightening pulley frame by a supporting pin so the frame may swing easily thereon, a round bar rigidly secured to the upper end of the forked bar and fitted in Vertical bearings in the cross bars of the stationary supporting frame so that it will be capable of both a vertical and a turning movement therein, substantially as described.

2. In a belt tightener, the combination with a stationary supporting frame, of a movable tightening pulley frame, two tightening pulleys mounted in bearings so as to be rotated that it is capable of a free vertical and a easily therein, a forked bar having its lower turning movement either Way therein, subto end pivoted to the tightening pulley frame by stantially as described.

, a pin upon which the pulley frame can easily 5 swing from side to side, the upper portion of CHARLES KYSOR' the forked bar being round in cross section WVitnesses: and fitted in vertical bearings in the cross JAMES SANGSTER, bars of the stationary supporting frame so A. J. SANGSTER. 

